| Literature DB >> 11682174 |
A V Rodriguez1, M D Baigorí, S Alvarez, G R Castro, G Oliver.
Abstract
Phosphatidylinositol-specific phospholipase C (PI-PLC) activity was investigated in 25 different lactic acid bacteria (LAB) strains belonging to the genera Lactobacillus, Weisella, and Enterococcus. PI-PLC activity was detected in 44% of the strains studied in culture medium without carbon source. From the PI-PLC positive strains, Lactobacillus rhamnosus ATCC 7469 was selected for translocation studies. Healthy mice were orally administered with a daily dose of 2.0 x 10(9) of viable L. rhamnosus suspension. Viable bacteria were detected in liver and spleen of mice fed with LAB for 7 days. Bacterial colonies isolated from liver were biochemically characterized, and further subjected to randomly amplified polymorphic DNA. Amplification patterns of five strains displayed identical profiles to L. rhamnosus. PI-PLC activity was determined in the strains recovered from liver.Entities:
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Year: 2001 PMID: 11682174 DOI: 10.1111/j.1574-6968.2001.tb10858.x
Source DB: PubMed Journal: FEMS Microbiol Lett ISSN: 0378-1097 Impact factor: 2.742